Petroleum Geology Acronyms

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Corrected Phase Shift UP (CPUP)

This is an acronym for a well log used in the oil and gas industry. The acronym CPUP is a unique identifier to recognize this particular log and can be encountered in your log evaluation software or your corporate datastores. The acronym stands for 'Corrected Phase Shift UP'. Usage of this log is not high and encountering it is a rare occasion. This log can be used to evaluate the result of adding or subtracting from a phase measurement.

Furthermore, this can be explained by looking at the plane angle. In other words, the angular displacement between two lines extending from the same point, measured in the plane of the two lines.This log in unitless. Either the log measurements can not be expressed with a unit (eg. a ratio) or the unit is unknown to us.

Data from this log can be used to investigate the phase shift. Similar logs are listed below: